Home
Class 11
PHYSICS
An ideal heat engine can be 100% efficie...

An ideal heat engine can be 100% efficient if its sink is at

A

0K

B

273K

C

`0^(@)C`

D

`0^(@)F`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-I(C.W)|32 Videos

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-II(C.W)|25 Videos

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise SOLVED EXAMPLE|83 Videos

  • GRAVITATION

    NARAYNA|Exercise EXERCISE -IV|40 Videos

  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - IV|35 Videos

Similar Questions

Explore conceptually related problems

A fritionless heat engine can be 100% efficient only if its exhaust temperature is

Why can't a machine be 100% efficient?

A carnot engine has efficiency of 80%. If its sink is at 127^(@)C , the find the temperature of source.

A carnot engine has efficiency of 50% when its sink is at 227^(@)C . What is the temperature of source

Even carnot heat engine cannot give 100% efficiency. Explain why OR can you design a heat engine of 100% efficiency? Explain ypur answer. OR A heat engine with 100% efficiency is only a theoretical possibility. Explain.

An ideal Carnot heat engine with an efficiency of 30% . It absorbs heat from a hot reservoir at 727^(@)C . The temperature of the cold reservoir is

An ideal Carnot's engine whose efficiency 40% receives heat of 500K. If the efficiency is to be 50% then the temperature of sink will be

Even Carnot engine cannot give 100% efficiency because we cannot

NARAYNA-KINETIC THEORY OF GASES-C.U.Q
  1. Two steam engines 'A' and 'B', have their sources respectively at 700K...

    Text Solution

    |

  2. If the temperature of the sinkis decreased, then the efficiency of hea...

    Text Solution

    |

  3. An ideal heat engine can be 100% efficient if its sink is at

    Text Solution

    |

  4. If the temperature of a source increases, then the efficiency of a hea...

    Text Solution

    |

  5. When heat is added to a system then the following is not possible?

    Text Solution

    |

  6. A sink, that is a system where heat is rejected, is essential for the ...

    Text Solution

    |

  7. The efficiency of a Carnot heat engine

    Text Solution

    |

  8. An ideal heat engine working between temperature T(H) and T(L) has eff...

    Text Solution

    |

  9. The efficiency of the reversible heat engine is eta(r) and that of irr...

    Text Solution

    |

  10. In a heat engine, the temperature of the working substance at the end ...

    Text Solution

    |

  11. The adiabatic and isothermal elasticities B(phi) and B(theta) are rela...

    Text Solution

    |

  12. For the indicator diagram given below, select wrong statement?

    Text Solution

    |

  13. The door of a running refrigerator inside a room is left open. The cor...

    Text Solution

    |

  14. Which of the following will extinguish the fire quickly?

    Text Solution

    |

  15. Which of the following is true in the case of molecules, when ice melt...

    Text Solution

    |

  16. When two blocks of ice are pressed against each other then they stick ...

    Text Solution

    |

  17. A cubical box containing a gas with internal energy U is given velocit...

    Text Solution

    |

  18. A cubical box containing a gas is moving with some velocity. If it is ...

    Text Solution

    |

  19. Which one of the following is wrong statement.

    Text Solution

    |

  20. A common salt is first dissolved in water and extracted again from the...

    Text Solution

    |